Electric shaver



Feb. 20, 1945.

H. P. ECLOV ELECTRIC SHAVER Filed NOV- 1, 1943 2 SheetsSheet l INVENTOR.//JALMAR P fcLov ATTORNEY Feb. 20, 1945. H, P. EcLov ELECTRIC SHAVERFiled Nov. 1, 1943 2 Sheets-Sheet 2 m m um IN VEN TOR. HJALMAR P CLOV BYl A TTo /vEy Patented Feb. 20, 1945 UNITED STATES PATENT OFFICE ELECTRICSHAVER Hialmar P. Eclov, Washington, D. 0.

Application November 1, 1943, Serial No. 508,568

3 Claims.

The present invention relates to shavers driven by a miniature electricmotor having preferably a plastic housing which answers as a hand pieceas is the custom in devices of the class and having a rotor within ashield with two or more thin cutting blades, the outer edges of whichare caused to contact the inner surface of the shield by means ofsuitable springs or by centrifugal force or by both conjointly.

An object of my invention is to provide preferably an ovate spheroidshaped shield with a multiplicity of closely spaced apertures thereinand means whereby the shield can be moved over the face without turningor whereby the shield may be allowed to roll over the face by frictionalcontact.

Another object of the present invention is to provide teeth in the frontend of the shield and position the blades so their ends contact theunderside of the teeth to thereby form a device which may be operated onthe clipper principle.

A further object of the present invention is to provide a cutter headwhich may be easily detached from the frame and shaft of the motor.Another object of my invention is to provide preferably an ovatespheroid shaped shield which may be caused to roll over the face andimpart a sliding motion of part or all of the surface in contact withthe face so as to encourage the stubble to move into the openings in theshield.

A still further object of my invention is to provide a cutter head whichcauses air to move rearwardly through the head and then be dischargedoutwardly at the rear end of the shield and having a pocketed guidewayat the rear of the shield which will act to catch the major part of thedischarged stubbles by centrifugal force.

Other objects of my invention are to provide a device of the class wherethe operating parts have a purely rotating movement and wherein thedevice is simple, easily handled and can be manufactured at low cost,and is neat in appearance.

To these and other useful ends my invention consists of'parts andcombinations of parts or their equivalents and mode of operation ashereinafter set forth and claimed and shown in the accompanying drawingsin which:

Fig. 1 is a broad side view of my device partially sectioned.

Fig. 2 is an enlarged section of the device taken on lines 2--2 of Fig.1.

Fig. 3 is a front view of the head.

Fig. 4 is a sectional view taken on lines l-4 of Fig. 1.

Fig. 5 is an enlarged side view of the shield as shown in Figs. 1, 2, 3,and 4.

Fig. 6 is an enlarged front end view of the rotor.

Fig. 7 is an enlarged longitudinal section of the rotor taken on linesI-'I of Fig. 6.

Fig. 8 is an enlarged side view of a rotor blade.

As thus illustrated the motor of my device'including its housing, is inits entirety designated by reference character A. The cutter head in itsentirety is designated by reference character B.

Member A comprises a shell made preferably from synthetic material andbeing adapted to enclose a motor (not shown). Member A is provided witha suitable plug-in socket I0 having a flexible cable II. The shaft ofthe motor is supplied with a knurled wheel I2 which extends through asuitable opening in the Side wall of the shell so the operator can startthe motor manually as is the custom in devices of the class.

Shell A is preferably provided with a relatively long sleeve I3 whichanswers as a bearing for the motor shaft I4. I mount a cutter head I6 onshaft I4 which is keyed to the shaft and held into position by a knurlednut I5. Head I6 is provided with two or more outwardly projecting wingsI! which are somewhat thicker at their outer edges as at I8 havinggrooves I9. The

outer edges of members I8 are shaped so as to turn without contact withthe shield 23. Member 23 is preferably shaped as illustrated and havinga multiplicity of closely spaced apertures 20 for almost its entirelength. The forward end of shield 23 is provided with teeth as at 2|.

I provide narrow blades 25 which fit freely into slots l9 havinginwardly projecting members 26-26 which extend over the ends of memberI8 so the longitudinal position of these blades is fixed relative tomembers I8. The forward ends of the blades terminate slightly in rear ofthe front ends of teeth 2I. Member 23 is slitted at spaced intervals asat 22 and fits snugly over a carrying member 21 which is rotatablymounted on bearing sleeve I3. Member 21 is shaped as shown in Figure 1and has an outer flange 28 having a grooved surface over which the rearend of shield 23 is tightly fitted. The disc part of member 21 isprovided with a number of closely spaced apertures 29.

I provide a member 35 which is secured to member 21 and extendsoutwardly and rearwardly as illustrated having on its outer edge a curveshaped portion 38, the front edge of which is spaced 8, short distancefrom the rear end of the shield as at 31.

It will be seen that because of the shape of the rotor and member 23these members will act to draw air into the front end of member 23 anddischarge it at 31; thus, to a large extent the stubble will be carriedrearwardly and deposited into the pocket formed by curved member 36.

Thus it will be seen that member 23 may be caused to roll over thesurface of the face or it can be held with the thumb and be caused toslide over the face, that it may be tilted upwardly so that teeth 2|will slide along the face and coact with blades 25 to operate like ahair clipper and that because of the shape of the shield 23 there willbe some slippage of the ovate surface of the shield thus to encouragethe stubble to extend into the apertures.

By scrutinizing Fig. 1 it will be seen that by removing knurled nut ISthe entire head may be detached from the holder and when necessary theshield may be detached from its member 2! thus providing convenientmeans for inspecting, cleaning or replacing parts.

It will be understood that shield 23 is very thin. Its shape, however,gives it great rigidity and strength and since blades 25 are free tomove outwardly in slots I9, these blades will be held against the shieldby centrifugal force. Furthermore I may provide suitably shaped springs25' to firmly hold the blades against the inner surface of the shield.

Clearly many minor detail changes may be made without departing from thespirit and scope and my invention as recited in the appended claims.

Having thus shown and described my invention I claim:

1. A shaver of the class described, comprising a housing having a motor,the forward end of the motor shaft protruding through an elongatedbearing sleeve, a head secured to the protruding end of the shaft, afrustum of an ovate spheroid shaped shield rotatably mounted at its rearend on said elongated bearing sleeve by means of a carrying element, amultiplicity of closely spaced apertures in the major part of theshield, two or more wings on said head having mounted thereon cutterblades with means for causing the blades to snugly contact the innersurface of the shield under said apertures, teeth in the front end ofsaid shield, said blades at their forward ends adapted to contact theunder surface of said teeth to cooperate therewith and act as a clipper.

2. A device as recited in claim 1 including; openings in said carryingelement, an air directing element in the rear of said openings its outerperiphery having a forwardly and inwardly curved surface which is spacedfrom the rear end of said shield and carrying element, forming an airpassageway and a pocket adapted to catch the cut stubble by centrifugalforce.

3. A shaver of the character described, comprising a housing having amotor, the forward end of the motor shaft protruding, a rotor headmounted on said protruding shaft end, a thin walled shield having anopen front and a relatively large rear end, the rear end being mountedon said housing, a multiplicity of closely spaced openings for thegreater part of the length of the shield, a number of longitudinallypositioned cutter blades on said rotor head having means adapted tocause the blades to snugly and yieldingly contact the inner surface ofsaid shield under the apertures, closely spaced teeth on the forward endof said shield, said cutter blades adapted to contact the under surfaceof said teeth to cooperate therewith to act as a clipper.

HJALMAR P. ECLOV.

